atolstov032@gmail.com<\/a><\/p>\nORCID: 0000-0001-6016-9308<\/p>\n
Polym. J., 2022, 44<\/strong>, no. 1: 61-67.<\/p>\n <\/p>\n
Section: Structure and properties.<\/p>\n
<\/p>\n
Language: Ukrainian.<\/p>\n
<\/p>\n
Abstract:<\/p>\n
An influence of surface adsorption-active centers of fine amorphous silica on physical hydrogen bonding (H-bonding) network in polyurethaneurea (PUU) and nanostructurized polymer blend (PUU\/30PVC) was studied by FTIR spectroscopy. PUU was synthesized by prepolymer approach in N,N-dimethylformamide (DMF) solution using poly(propylene glycol) of Mn<\/sub> = 1000, 2,4-tolylene diisocyanate and 2,4-tolylene diamin as a chain extender at a molar ratio of 1:2:1. The compositions were obtained by solution-casting technique using DMF as a solvent. It was found introducing fine silica with hydroxylated surface into PUU matrix enhances segregation of hard urethane-urea segments in oligoether matrix. The maximum of strengthening of the filled composites was observed when silica A-300 content reaches 2\u20133 % (by weight). Oppositely, introducing silica AM-300 with silylated (by (CH3<\/sub>)2<\/sub>SiCl2<\/sub>) surface into PUU initiates degrading domain structure of elastomer due to interactions between polar groups of chemisorbed molecules of chlorine-containing modifier and proton-donor groups of rigid segments.<\/p>\nModified surface of silica has minor destabilization effect on H-bonding network in nanostructurized polymer-polymer blend. As a result, for producing filled composites without weakening interface interactions and, respectively, reducing the strength and optimal filler content (silica AM-300 or A-300) should be selected as high as 1 % (by weight).<\/p>\n
Keywords:<\/em><\/strong> poly(urethane-urea) elastomer, poly(vinyl chloride), polymer blend, aerosol, interfacial interactions, mechanical strength.<\/em><\/p>\nReferences<\/h3>\n
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https:\/\/doi.org\/10.15407\/polymerj.44.01.061 STUDYING OF THE NANOSTRUCTURIZED POLY(URETHANE-UREA) \u2013 POLY(VINYL CHLORIDE) BLEND MODIFIED BY AEROSILS T.L. Malysheva, Institute of macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine, e-mail: malysheva_tat@ukr.net ORCID: 0000-0002-3046-6819 A.L. Tolstov, Institute of macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine, e-mail: atolstov032@gmail.com ORCID: 0000-0001-6016-9308 Polym. J., 2022, 44, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"acf":[],"_links":{"self":[{"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages\/3390"}],"collection":[{"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/comments?post=3390"}],"version-history":[{"count":2,"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages\/3390\/revisions"}],"predecessor-version":[{"id":3392,"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages\/3390\/revisions\/3392"}],"wp:attachment":[{"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/media?parent=3390"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}